Iron / zinc alloy with 100% French nylon powder coating.
Iron quality bra slider with low cost, good hardness but have magnetic, the most popular in the market.
Zinc alloy bra slider with good hardness, can pass needle test but cost a little higher.
Nylon coated metal slider can dye any solid color to match different color fabrics and supplies. Good color-fastness.
Eco-friendly nylon coated bra adjuster, ideal for swimwear, bra, lingerie, camisole, under sweater-dress, low-back evening dress.